WO2018032071A1

WO2018032071A1 - Fully or partially standalone electro-electronic system powered by photovoltaic energy

Info

Publication number: WO2018032071A1
Application number: PCT/BR2017/050056
Authority: WO
Inventors: Lilian Luisa BRITO BUENO
Original assignee: Brito Bueno Lilian Luisa
Priority date: 2016-08-16
Filing date: 2017-03-14
Publication date: 2018-02-22
Also published as: BR102016018827A2

Abstract

The present invention patent application concerns fully or partially standalone electro-electronic systems, integrated or otherwise, that are powered by photovoltaic energy, in normal or specific state, the main field of application of which can be oriented towards use as high-, medium- or low-intensity obstacle beacons. The invention is intended for signalling in general, and comprises a single-device system in which the photovoltaic panel (B) and a battery bank (E), including control electronics (A), are integrated into the same product, the invention including an optical assembly (D) that is powered by the assembly to provide a lighting system, this assembly being enclosed in a translucent outer cover (I). The invention includes an algorithm for operating the system.

Description

TOTAL OR PARTIALLY SELF-CONTROLLED ELECTRONIC SYSTEM, FED THROUGH PHOTOVOLTAIC ENERGY

FIELD OF THE INVENTION

The present invention relates to total or partial autonomous electrical systems, whether or not integrated, monitored or not, fed in whole or in part by any of its functions, through photovoltaic energy, in normal or specific condition, whose main field of application can be turned to use as high, medium and / or low intensity obstacle flags.

BACKGROUND OF THE INVENTION

The technology of harnessing the solar photovoltaic energy and its storage in batteries for future use, is already existent and widely used. The sets are usually composed of:

- One or more panels or set of solar cells, which capture the solar energy and convert it into electrical energy;

- One or more batteries, which have the responsibility of storing some of the energy generated for momentary or future use;

- A load control system, which limits the power supplied to the battery, aiming to ensure the best capacity of storage of load without damaging it and;

- A consumer system, which will carry out the proposed work for the assembly, ie, signaling, alarm, movement of loads, etc.

STATE OF THE TECHNIQUE

The systems mentioned above operate according to their own parameters and without an effective dynamic integration between them, which means that:

- The use of stored energy is made without considering the need for operation of the whole;

- The assembly is subject to sudden operation, possibly compromising the safety of the system in which it is installed and may even cause accidents or stop signaling or act in emergency situations; - There is a misuse of energy stored in sequences of days with low insolation;

- Deep discharge of the battery pack, irreparably compromising the system, rendering it inoperative;

- The autonomy of the whole is compromised in periods of low insolation;

- The life of the battery (s) is very limited, causing eventual, systemic or definitive failures in a short time.

Also known from the state of the art is document MU8700512-3, filed 26/04/2007 and published on 12/09/2008, under the title of SUMMER SIGNAL, WITH INTERNAL ELECTRONIC CIRCUIT CAPABLE OF GENERATING DIFFERENT SEQUENCES OF ALUMINUM LIGHTING ANIMATIONS WITH DIFFERENT ANIMATION SPEED AND DIFFERENT FLASHING FORMS, INCLUDING GIROFLEX, ALL CONFIGURABLE THROUGH A SINGLE BUTTON. POWERED BY A REGISTERABLE BATTERY, BY SOLAR ENERGY RECHARGER OR BY THE ELECTRICAL COMMERCIAL NETWORK, which describes an apparatus, mounted in a translucent box that allows the emission of light, including a compartment for the optional solar energy capture system or any other system for recharging the energy in the batteries of the flag, characterized by the fact that it offers several sequences of luminous animations, various animation speeds and various types of flash, besides the management of the operating energy. According to the invention, the model has electronic boards housed in the compartment constructed of several faces, each containing a series of LEDs (light emitting diodes) working independently. Thus, the flag is capable of producing any type of light sequence, including simulating the circular motion of the gyroflex with motor. The apparatus also has another component adapted for attachment at an appropriate location for signaling, depending on the specific type of situation to be signaled. Of course, the only thing in common between this prior document and the present invention is the fact of using solar energy, it being important to note that this prior model does not perform the control and operational functions promoted by the invention. OF THE INVENTION

The present invention aims at a product that effectively integrates the system of generation and storage of energy to the assembly that will effectively carry out the proposed or necessary work, promoting a better utilization of the energy available through the sun and converted, at the same time in which ensures the best operating safety conditions to the system and protects the battery (s) against deep discharge, ensuring the resumption of operation after long periods of low insolation if its interruption has occurred.

ADVANTAGES OF THE INVENTION

[0005] The developed product has the following main advantages:

- Autonomous solar product, which meets the requirements of national and international standards related to light intensity (optical assembly certified by the I PT / SP);

- Better use of photovoltaic solar energy, because due to the electronic coupling circuit, it promotes longer charging time to the battery (s);

- Cycle of charge and consumption determined by the insolation incident on the solar panel, which prevents point shadows from triggering the consumption, while avoiding that localized light beams off the flag unduly;

- Longer life of the battery (s), estimated in 4 (four) years, due to the dynamic dimensioning of the load and discharge currents according to the manufacturer's technical data;

- Consumption adjusted according to load available in the battery, avoiding that the flag be erased which could imply operational risk;

- Due to the better use of energy, both in charge and in the discharge of the battery (s), it allows a set of panels + battery (s) of smaller size and weight than the competitors, making it possible also to be mounted in a single unit;

- Auto-power-off system, which promotes the disconnection of the battery if it reaches minimum level of load that could compromise its useful life. This feature was included considering that it is incomparably less critical that the system shut down during an operation, but can restore its operation after a new charge that is irreparably damaged due to battery depletion;

- It does not need maintenance, because due to the long battery life, there is no need for periodic checks on its state of charge and constant substitutions.

DESCRIPTION OF THE DRAWINGS

The invention will hereinafter be described in its embodiment, and for better understanding, references will be made to the accompanying drawings, in which:

Figure 1: Cross-sectional side view of the electro-electronic device of the system of the invention, exemplifying a medium-intensity solar flag;

Figure 2: Cross-sectional side view of the electro-electronic device of the system of the invention, exemplifying a low intensity solar flag;

Figure 3: Perspective view of the electro-electronic device of the system of the invention, exemplifying a low intensity solar light flag;

Figure 4: Perspective view of the electro-electronic device of the system of the invention, exemplifying a low-intensity solar modulator;

Figure 5: Shows the functional algorithm of the system.

DETAILED DESCRIPTION

The whole or partly autonomous power system, powered by photovoltaic energy, object of this patent application, is presented in this invention, by way of example, for a product intended for the signaling of obstacles to air traffic, but is not disclosed. limiting it.

According to the invention, the system in its use as a flag - which is only one of the possible application examples - comprises in a single device the at least one photovoltaic panel B and its battery bank E, equipped with control electronics (A), all integrated in the same product, totally eliminating the need for external interconnections to these components. The invention contemplates an optical assembly (D), for example, the LED base, which is powered by the assembly, to provide a lighting system. This assembly is enclosed in a translucent outer shell (I). Still according to the invention, a specific algorithm is directed to the battery charge controller (E), which achieves much better yield than the others available in the market, which manages to carry it more efficiently, thereby enabling the use of a smaller solar panel (B).

In addition, this algorithm also contemplates discharge control, which constantly monitors the battery (E) and changes operating parameters, providing the system with a much longer service life than currently available.

As a supplementary feature, the assembly may be configured to disconnect the battery (E) when its voltage is at the lower limit of use without risk of damage, providing conditions for the system to recover and re-operate as soon as conditions are reinstated.

Still further optionally, the invention includes the possibility of an alarm being generated by providing a dry contact for signaling any failure in the assembly, such as, for example: disconnection of the battery (E), low battery failure, operation failure (indicator lighting), among others that may be desired.

[0013] The system may additionally include the "recharge" function, which is exclusively intended to promote the recharge of the battery (E) during the day and does not allow the indicator to be lit at night, providing cumulative charging on several consecutive days , if necessary due to long periods of storage, etc.

[0014] According to Figure 5, the following operating algorithm is obtained:

- a1) The control circuit (A) - system intelligence -, measures the available energy (1) at the terminals of the solar panel (B);

- b1) If it is detected that it is "DIA", the control circuit (A) turns off (2) the trigger of the LEDs (C), which disconnects (3) the LEDs (D) keeping the luminaire off;

- d) The control circuit (A) measures (4) the available energy in the battery (E);

If the battery (E) requires charging, the control circuit (A) energizes (5) the charging circuit (F), which connects (6) the solar panel (B) to the battery (E) ). This condition assures the recovery of the consumed energy of the battery in the nocturnal period, through the available energy in the solar panel; If the battery (E) is not requiring charging, the control circuit (A) energizes (7) the float circuit (G), which connects (8) the solar panel (B) to the battery (E ). This condition ensures the maintenance of the charge condition on the battery (E) and does not allow it to receive power beyond its limit, which, over time, on repeated occasions would cause irremediable damage to said battery (E);

- f1) Periodically, the control circuit (A) - intelligence of the system -, measures (1) again the available energy in the terminals of the solar panel (B);

- g1) If it is detected that it is "DIA", the procedures of steps (b1) to (f1) are repeated;

- h1) If it is detected that it is "NIGHT", the control circuit (A) turns on (2) the LED trigger (C), which connects (3) the LEDs (D) by lighting the luminaire according to the type, or if it is of low intensity, steady firing and, in the case of medium intensity, flashing firing;

- M) Periodically, the control circuit (A) measures (4) the available energy level in the battery (E);

- j1) If it is detected that the available energy level in the battery (E) is below the predetermined value but above the minimum guarantee for its future charge recovery, the control circuit (A) will adjust the energy level to be delivered to the set of LEDs (D) in order to ensure the operation of the luminaire for as long as possible, without prejudice to its useful life;

- k1) If the available energy level in battery (E) is found to be below the guaranteed minimum level for future recovery, the control circuit (A) turns off (2) the LED trigger (C), the which disconnects (3) the LEDs (D) by keeping the luminaire off and activates (9) an alarm signal (H) to inform the non-compliant operating condition;

11) In addition, the control circuit (A) continuously monitors (10) the LEDs (D) and, in case of failure, also triggers (9) an alarm signal (H) to inform the non-operating condition according;

- m1) Periodically, the control circuit (A), measures (1) again the available energy in the solar panel (B);

- n1) If it is detected that it is "NIGHT", the procedures of steps (i1) to (m1) are repeated; - o1) If it is detected that it is "DIA", the system returns to the procedure (d).

Thus, with the present invention, the following features are obtained:

- Lower physical volume in relation to available power;

- It meets the requirements of NBR 15238, ICAO Annex 14 and FAA 150 / 5345-43G for Medium and Low Luminous Intensities (L-865 and L-810, respectively);

- Technically estimated battery life in 4 (four) years;

- Cycle of variable consumption according to availability of battery charge;

- Battery protection against deep discharge;

- Enables recovery of the system after long periods of low insolation;

- Greater autonomy;

- Better use of solar and accumulated energy.

- Possibility of alarm via contact-dry in case of failure, low battery charge, battery disconnection and other options;

Finally, although it has been shown applied to an obstacle flag, the invention has a wide range of applications, mainly related to safety aspects such as: mine signaling, emergency exit routes, medical equipment, systems monitoring, among others.

Claims

1) TOTAL OR PARTIALLY SELF-CONTROLLED ELECTRONIC SYSTEM, FEDERATED THROUGH PHOTOVOLTAIC ENERGY, intended for general signaling, characterized by single device with at least one photovoltaic panel (B) and battery bank (E) with control electronics (A), components these integrated in the same product, the invention contemplating an optical assembly (D) that is fed by the assembly, to provide a lighting system; this assembly is enclosed in a translucent outer shell (I); includes an algorithm to operate the system.

A total or partially autonomous electro-electric system, powered by photovoltaic energy, according to claim 1, characterized in that the optical assembly (D) is, in a construction, the LED base.

A total or partly autonomous electric powered system, powered by photovoltaic energy, according to claims 1 and 2, characterized in that the algorithm is directed to the battery charge controller (E), so that, from its operation, allows the use of a smaller solar panel (B).

4) TOTAL OR PARTIALLY SELF-EMPLOYED ELECTROVELY SYSTEM FEEDING THROUGH PHOTOVOLTAIC ENERGY according to claims 1, 2 and 3, characterized in that the algorithm also includes discharge control, which constantly monitors the battery (E) and changes operating parameters .

A total or partly autonomous electric power supply system powered by photovoltaic energy according to claims 1, 2, 3 and 4, characterized in that the assembly can be configured to disconnect the battery (E) when its voltage is at the lower limit of conditions that allow the system to recover and re-operate as soon as the recharge conditions are restored.

6) TOTAL OR PARTIALLY AUTONOMOUS ELECTROLETRONIC SYSTEM, FED THROUGH PHOTOVOLTAIC ENERGY, according to the Claims 1, 2, 3, 4 and 5, characterized in that the invention optionally allows the generation of an alarm by the provision of a dry contact for signaling any malfunction in the assembly.

A total or partly autonomous electro-electric system, powered by photovoltaic energy, according to claims 1, 2, 3, 4, 5 and 6, characterized in that the system can be included in the "recharging" function to promote recharging of the battery (E) during the day and do not allow the flag to be lit at night, providing cumulative load on several days in a row.

A total or partly autonomous electro-electric system, fed by photovoltaic energy, according to claims 1, 2, 3, 4, 5, 6 and 7, characterized in that the algorithm is as follows:

- a1) control circuit (A) - system intelligence -, measures the available energy (1) at the terminals of the solar panel (B);

- b1) If it is detected that it is "DIA", the control circuit (A) turns off (2) the LED trigger (C), which disconnects (3) the LEDs (D) keeping the luminaire off;

- cl) the control circuit (A) measures (4) the available energy in the battery (E);

If the battery (E) requires charging, the control circuit (A) energizes (5) the charging circuit (F), which connects (6) the solar panel (B) to the battery (E) );

- E1) if the battery (E) is not requiring charging, the control circuit (A) energizes (7) the float circuit (G), which connects the solar panel (B) to the battery (E) );

- g1) if it is detected that it is "DIA", the procedures of steps (b1) to (f1) are repeated.

A total or partly autonomous electro-electric system, powered by photovoltaic energy, according to claims 1, 2, 3, 4, 5, 6, 7

and 8, characterized in that the following algorithm detects that it is "NIGHT":

- h1) If it is detected that it is "NIGHT", the control circuit (A) turns on (2) the LED trigger (C), which connects (3) the LEDs (D) by lighting the luminaire according to type, that is, if it is of low intensity, fixed firing and, in case of medium intensity, flashing firing;

- n1) If it is detected that it is "NIGHT", the procedures of steps (i1) to (m1) are repeated;

- o1) If it is detected that it is "DIA", the system returns to the procedure (d).